Home / 720,010.76-1,079,972.12-299,290.28

Finding the Fourth Proportional to 720,010.76, 1,079,972.12 and 299,290.28

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Solution

The fourth proportional to 720,010.76, 1,079,972.12 and 299,290.28 is: 448,917.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,010.76 : 1,079,972.12 = 299,290.28 : x
  2. Step 2: Convert to fraction form
    720,010.76/1,079,972.12 = 299,290.28/x
  3. Step 3: Cross multiply
    720,010.76x = 1,079,972.12 × 299,290.28
  4. Step 4: Simplify right side
    720,010.76x = 323,225,153,535.36
  5. Step 5: Solve for x
    x = 323,225,153,535.36/720,010.76
  6. Step 6: Final answer
    x = 448,917.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.